Arc furnace current sensors installed at specialist company in Gauteng
March 2003
Sensors & Transducers
Cape Town company SURE Engineering recently designed and manufactured a set of SURETECH high current sensors for Johannesburg-based electric furnace specialist company, ELFU Engineering and its client, which the company says is happy with the installed performance of the sensors.
Rogowski coil technology was used, which has been field-proven in various applications over the past two years by SURE Engineering. Rogowski technology uses 'air cored' current sensing, which has been known for the past century. The technology has not been exploited much due to the tricky signal processing that is needed, says the company. SURE Engineering believes that the potential of this technology is enormous.
The three sense coils were each mounted around its bus-bar phase of the electric supply to the arc furnace. Each phase carries a maximum of 8000 A a.c. Each sensor has a screened cable carrying the low-level signal to a SURETECH transducer, which processes the signals generated. The signals are complex in waveform as the arc furnace is continuously changing its current. According to SURE Engineering, the wide bandwidth requirements need special care, especially on the low frequency side. The company now has Rogowski coil technology well under its belt. In fact, it even offers these current coils with integrated voltage sensors too.
SURE Engineering will be exhibiting this Rogowski technology, and other innovative and unique SURETECH current and voltage sensing technology at the CIRED exhibition in Barcelona later this year.
For more information contact Neil Jeffrey, SURE Engineering, 021 712 1328, 083 555 0149, [email protected]
Further reading:
Distance sensor for confined spaces
ifm - South Africa
Sensors & Transducers
The O6D100 from ifm has been designed as a powerful all-rounder for typical applications in object detection, distance measurement and positioning.
Read more...
Long-range laser distance measuring sensor
Vepac Electronics
Sensors & Transducers
The MS-100A is a long-range laser distance measuring sensor with a range of 150 to 1000 mm. This sensor excels in applications requiring extended measurement capabilities, such as quality control and logistics.
Read more...
Listening for damage to wind turbines
Sensors & Transducers
The Fraunhofer Institute for Integrated Circuits, working in concert with the Fraunhofer Institute for Wind Energy Systems, has developed a solution that can be used to identify cracks and breakage inside wind turbine blades remotely at an early stage.
Read more...
Verification using Heartbeat Technology is a breeze
Endress+Hauser South Africa
Sensors & Transducers
Heartbeat Technology reflects Endress+Hauser’s long-term commitment to enhancing measurement reliability and efficiency across a growing product portfolio.
Read more...
Enhancing efficiency and reliability in the energy sector
VEGA Controls SA
Sensors & Transducers
VEGA offers practical, reliable solutions through specialised measuring instruments and deep industry know-how, all tailored to help energy companies keep costs under control while meeting strict regulatory standards.
Read more...
Condition monitoring for hydroelectric plants
ifm - South Africa
Sensors & Transducers
The energy company Compagnia Valdostana delle Acque generates electricity in the region’s 32 hydroelectric power plants with a total capacity of over 900 MW. Vibration sensors from ifm monitor the maintenance requirements of the turbines and power generators at all times.
Read more...
Precision sensing for water treatment
ifm - South Africa
Sensors & Transducers
ifm electronic has introduced two next-generation sensors designed for South Africa’s bulk and wastewater sector, engineered to withstand harsh environments and deliver long-term reliability.
Read more...
The next generation of inductive scanning encoder solutions
ATI Systems
Editor's Choice Sensors & Transducers
With the launch of the ECI 1122 and EQI 1134 rotary encoders, positioning specialist, HEIDENHAIN has introduced a new benchmark in inductive scanning technology that raises the bar for motion control and precision automation.
Read more...
Next-generation condition monitoring
Sensors & Transducers
The next generation Sitrans MS200 multisensor from Siemens is setting new standards in condition monitoring.
Read more...
Telco sensors for blocked/empty chute detection
Sensors & Transducers
Telco sensors overcome the problems of contaminated environments through powerful high-performance infrared sensors that ensure penetration of harsh pollution and guarantee reliable detectio
Read more...
printer friendly version